К минералам

RRUFF #817

Akrochordite

Элементы:MnAsOH
Valence:Mn^2+As^5+OH

Химия

IMA chemistry:
MnMn2Mn2(AsO4)2(OH)4(H2O)4
Valence chemistry:
Mn2+Mn2+2Mn2+2(As5+O4)2(OH)4(H2O)4

Классификация

Crystal systems:
monoclinic
Space groups:
P21, c
Structural group:
Akrochordite
IMA status:
Approved, Grandfathered, Redefined

Происхождение

Country:
Sweden
Published:
1922
Oldest age Ma:
1890
Paragenetic modes:
Abiotic, Stage 4a: Earth's earliest continental crust, PM32 - Ba-Mn-Pb-Zn metamorphics

Примечания

Flink G (1922) Akrochordit, ett nytt mineral från Långbans gruvor, Geologiska Foereningens i Stockholm Foerhandlingar 44, 773-776